Contest problems from the 1985 ACM scholastic programming contest. - Patrick J. Ryan; Lionel E. Deimel (ACM SIGCSE Bull., 1985)

Indeterminate strings, prefix arrays & undirected graphs. - Manolis Christodoulakis; Patrick J. Ryan; William F. Smyth; Shu Wang (Theor. Comput. Sci., 2015)

Constructing an indeterminate string from its associated graph. - Joel Helling; Patrick J. Ryan; W. F. Smyth; Michael Soltys (Theor. Comput. Sci., 2018)

Szemerédi's Theorem: an Exploration of impurity, Explanation, and Content. - Patrick J. Ryan (Rev. Symb. Log., 2023)